Ventilator



A. FIOCONNOR.

VENTILATOR.

APPLICATION FILED DEC. II. 1917.

1 ,339,973. Patented May 11, 1920.

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A. F. OCONNOB. VENTILATOR.

APPLICATION man DEC. 11.. 1911.

1,339,973, Patented May 11,1920.

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NITED STATES PATENT OFFICE.

ARTHUR F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR T0 TI-IE UNION RAILWAY EQUIPMENT CO., OF CHICAGO, ILLINOIS, A CORPORATION OF SOUTH DAKOTA.

VENTILATOR.

Application led December 11, 1917.

. are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to ventilators, and more particularly ventilators for fruit cars and the like.

The object of the invention is to provide a simple, strong, weather-tight ventilator which can be readily opened from the outside of the car and held in either open or closed position as desired.

One embodiment of the invention is illustrated in the accompanying drawings, in which- Figure 1 is an elevation of a car end having the improved ventilator attached thereto;

Fig. 2 is an elevation of the car end from the inside;

Fig. 3 is a front view, on an enlarged scale, of a portion of the ventilator showing the means for operating the ventilator from the outside of the car;

Fig. 4 is a section on the line 4 4 lof Fig. 3;

Fig. 5 Fig. 3;

Fig. 6 is a perspective view of one of the shutters of the ventilator;

Fig. 7 is a detail view of a modified form of locking device for holding the ventilator closed or open; and

Fig. 8 is a section on the line 8-8 of Fi 3. l l

'Ihe ventilator comprises a frame 10 which is mounted in the frame of the car, such as end plate 11, end posts 12, and belt rail 13. Laterally projecting lugs 14 are arranged on this frame to extendv over the sheathing of the car, through which attaching boltsor the like may be passed for securing the frame to the car structure.

In this frame 10 are pivotally mounted two parallel rows of shutters 15, adapted to open and close. The construction of the individual shutters is shown more particularly in Fig. 6. Each shutter 15 may be made of cast metal, preferably malleable -iron, with is a section on the line 5-5 of l Specication of Letters Patent.

Patented May 11, 1920. Serial No. 206,650. i

projecting trunnions 16 at each end adapted to be journaled in corresponding apertures 1n the frame 10 of the ventilator. The trunnions 16 are located adjacent the lower edge of the shutters so that gravity will hold the shutters open. At their inner ends each shutter is provided with an inwardly extending flange 17 for connecting the shutters to an operating link 18 by means of pins 19. The link 18 is arranged between the two rows of shutters, and the pins 19 extend through the inwardly projecting flanges 17 on the shutters of both rows, as shown in Fig. 2. Upward movement of the link will; therefore, close the shutters, and downward movement of the link will open them.

In order to open and close the ventilator from the outside, and to hold it in either its open or closedposition, the link is provided with a pair of laterally projecting arms 20, 21. These arms are adapted to extend through the slots 22, 23, in the frame 10. The upper arm 20 is formed with an aperture 24 through which the operator7s fingers may be inserted to get a rm grip thereof for opening and closing the ventilator. The arm 21 is provided with means for locking the ventilator in either its open or closed position. For this purpose outwardly proj ecting flanges 25 are arranged on the frame on either side of the arm 21. In these flanges 25 are formed a pair of holes 26, through which a pin 27 may be passed and secured by means of a car seal 38. The arm 21 has a similar hole 28, adapted to register with either the upper or lower of each pair of holes 26, according as the ventilator is opened or closed. l

As there may be considerable play between the pins 19 and the link 18 and other parts of the ventilator, provision is preferably made for closing the ventilator more tightly than is ordinarily possible by means of the pin 27. In the construction shown this is accomplished by providing a notch 30 in the upper part ofthe arm 20 for the reception of a dog 31 slidably mounted in a frame. The arm 20 in closing the ventilator moves not only upwardly, but also outwardly, so that the extent to which the dog 31 can enter the notch 30 depends upon the amount the arm 2O is raised. The dog 31 has, therefore, a wedging action in the notch 30, which prevents the arm 20 from l moving inward and consequently prevents the link from falling and opening the ventilator. v

Vhen it is desired to open the ventilator the dog may be moved out oi engagement with the notch 30 by means o'l' its outwardly n with the hole 28 and upper holes 26. The

two locking devices, c'. c., the pin 27 and dog S31, are therefore supplementary to each other. vWhen the ventilator is open it will be held in that position by gravity, or if it is desired to use a more positive means for holding the ventilator open the pin 27 may be passed through the lower holes 26.

Instead of providing the notch 30 with a smooth inclined edge for engagement with the dog 31, this edge may be shown with a series of steps formed therein (as shown in Fig. 7) which correspond lwith different extents o opening of the ventilator.

As it is important that the ventilator be constructed so as to exclude the weather, a flange 29 is provided along` the lower edge ot each shutter, this flange being offset to an amount equal to the thickness of the shutter so that it can overlap and bear against the upper edge of the shutter adjacent thereto. y

As rain or the like may pass through the slots 22, 23, in the frame, a shield oi' galvanized iron, or other material, may be -provided which has apertures through are opened. and closed.

which the arms 20, 21, extend. r1"his shield, therefore, hangs freely on the arms 20, 21, and is kept in place by lateral guides 40 (Fig. 8) attached to the frame 10, so that the arms 20 and 21 slide relatively to the shield as the ventilator is opened or closed. As water may run down this shield on the inside of the frame, a catch pin 311 is arranged between the frame 1U and the belt rail 13 into which the water drips.

and a downwardly turned outer edge 36. Transverse channels 37 are formed on the under side of the Jframe 10 for allowing the water to escape from the pan 34.

The shutters are preferably arranged, as shown, in two rows, with their operating mechanism between to prevent undue strain on the shutters andto place a more even strain on the link and arm by which they The shutters 15 have ilanges L11 extending between the trunnions 16, as shown in Fig. 6 to stiften the shutters'. 'Flangesare used instead of a This pan has an upwardly turned inner edge 35 thickened part, of the same diameter as the trunnions in order that all parts of the shutter may be of substantially the same thickness and thereforeV cool in casting at the same rate.

I claim as my invention- 1. A ventilator comprising, in combination. a series of shutters, each shutter mounted to swing about a pivot adjacent its lower edge, a lug projecting inwardly from the lower portion of each shutter, a link connecting said lugs whereby said shutters tend to open by gravity, an arm on said link projecting to the outside of the ventilator and means for holding the arm in adjusted position.

2. A ventilator comprising, in combination, a frame, a series of shutters pivotally mounted therein, a link pivotally connected to each oi' said shutters on the inner side of the ventilator, an operating handle on the outer side of the ventilator, a connection between said handle and said link, and means for locking said handle in a plurality of positions relatively to said trame.

3. A ventilator comprising, in combination, a frame, a series of shutters pivotally mounted on said frame adjacent their'lower edges, a link pivotally connected to each of said shutters on the inner side of the ventilator, an arm on said link projecting through the outer face of saidirame, and a locking member adapted to engage a shoulder on said arm, the point of engagement of said member and said shoulder' depending upon the distance said arm projects beyond the outer face of said frame.

a. A lventilator comprising, in combination, a frame, a series of shutters pivotally mounted on said frame, a link pivotally connected to each of said shuttersjon the inner side of the ventilator, an arm on said link projecting through the outer face, of said frame, and a locking member adapted to engage a shoulder on said arm, the point ot engagement, of said member and said shoulder depending upon the distance vsaid arm projects beyond the outer face of said frame. Y v

5. A ventilator comprising, in combination, a frame, a plurality of shutters, pivotally mounted inthe frame 'and each having a lug projecting backwardly, a link bar pivotally attached to the several lugs and havthe outer margin of the notch being inclined inwardly and downwardly, and a detent slidably secured to the outer face of the frame for entering the notch.

7. A ventilator comprising, in combination, a frame having a transverse apertured bar, two sets of shutter plates each plate being pivoted in a side member and the transverse bar of the frame and having at its inner end a lateral arm, a link bar back of the transverse bar pivotally attached to each arm, and an arm projecting from the link bar through the transverse bar whereby the shutters may be controlled.

8. A ventilator comprising, in combination, a frame having a transverse apertured bar, two sets of shutter plates each plate being pivoted in a side member and the transverse bar of the frame and having at its inner end a lateral arm, a link bar back of the transverse bar pivotally attached to each arm, an arm projecting from the link bar through the transverse bar whereby the shutters may be controlled, such arm having a cam face at its upper margin, and a slide plate carried by the transverse bar for coperating with the cam.

' ARTHUR F. OCONNOR. 

